Hoeace see



(No Model.) A

H. SEE.

ONNETING ROD.

INVENTOR Patented Mam. 7,1882.`

Nw- L UNITED STATES PATENT OFFICE.

HORACEl SEE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGN OR OF ONE-HALF TO THE WILLIAM ORAMP & SONS SHIP'AND ENGINE BUILDING OOM- PANY, OF SAME PLACE.

CONNECTING-ROD.

SPECIFICATION forming part of Letters Patent No. 254,707, dated March *7, 1882. Application filed January 26, 1882. (No model.)

To all whom it may concern:

Be it known that I, HORACE SEE, of the city and county Philadelphia, in the State of Pennsylvania, have invented a certain new and useful Improvement in Connecting-Rods,

of which improvement the following is a speci- -ication.

My improvement relates to the class of connecting-rods chiefly employed in marine steam- Io engines, in which, for the purpose of economizing room, the cross-head end of the rod is forked, so as to receive bearings on each side of the piston-rod for connection to pins on the cross-head. Inasmuch as the portions of the rod in which the bearings of the crosshead pins are fitted project from the rod at right anglesto the bearing-surface of its opposite end, and must be made of sufficient strength and dimensions to provide proper accommodazo tion for the pins which secure the cap, the forging and finishing of rods of this class, when of large size, is difiicult and expensive.

. It is the object of my invention to economize both time and material in manufacture z5 Without reduction of strength or interference with adaptability to existing engines 5 and to this end my improvement consists in a connecting-rod having detachable bearing blocks or sections, each iitted to receive a bearin g and 3o cap, and united to the head of the rod by a screw and nut. The improvement claimed is hereinafter more fully set forth.

In the.accompanyingdrawings Figure l is. a view, partly in elevation and partly in section at the line m a0 of Fig. 2, of a connectingrod embodying 'my improvement; Fig. 2, a view in elevation of the same at Vright angles to Fig. 1 Fig. 3, a transverse section at the line yy of Fig. 1, and Fig. 4 an isometrical 4o sectional View of one of the bearing-blocks.

The body A of the rod and its head A at the crank end are of the ordinary construction, and the crank-pin bearings B and cap B are connected to the rod by bolts b, as is usual in approved practice. The head A2 at the crosshead end of the rod is forged in one piece therewith, and projects from the body of the rod on each side of a shallow central recess, a. In connecting-rods having forked ends, as here- 5o tofore constructed, transverse projections were formed upon the ends o f the head, the dimensions of which, as forged, were thus materially increased and additional labor involved in finishing. These projections are dispensed with under my invention, the head A2 being forged 5 5 and finished, as will be seen from Figs. 2 and 3, of uniform width throughout, andbeing but slightly greater in width than the largest diameter of the body A.

The support for the bearings O of the cross- 6o head pins is provided by two separate bearin gblocks, C', each having a central stem, c', upon the outer end of which is cut a screw-thread, and which fits neatly in a corresponding socket in the head A2, adjacent to one of its ends, the blocks O being secured to the head A2 by nuts c2, engaging the threads of the stems. c. Gapbolts c, having nuts c3, pass through openings in the blocks O and through the 'bearings O, and serve to secure the cap O2 in position, and 7o admit of the requisite adjustment of the bearings O.

Thehead A2, being devoid of projections, can not only be more readily and perfectly forged than those of lthe ordinary form, but also involves less snperuous metal in the rough forging and less time and labor in finishing. The separate bearing-sections C', being of comparatively small size and substantially rectilineal in outline, may be forged, finished, and 8o secured to the head with corresponding facility, and the completed structure answers all the requirements, both of function and adaptability, which are possessed bythe rods heretofore constructed.

I claim as my invention and desire to secure by Letters Patent- 1 In a connecting-rod, the combination of a head having a socket adjacent to each of its ends and two bearing blocks or sections, each 9o abutting against the head, and having a central threaded stem fitting one of the sockets thereof` and secured thereto by a nut, and 'being bored out on each side of the stem for the reception of a cap-bolt, substantially as set forth.

HORACE SEE. Witnesses:

J. SNOWDEN BELL,

GEO. T. KELLY. 

